Hi all, I have created one render surface and one Z-buffer surface in system memory in DirectX. When I use the SetRenderTarget to set the target to the render surface, the Direct3D return a error code 0x88760028. What''s the meaning of this error code? Is it the render surface that must be in the video memory? Thanks a lot!!! Thomas

If you''re using the HAL the z-buffer needs to be created in video memory.